260 lines
8.7 KiB
LLVM
260 lines
8.7 KiB
LLVM
; Like frame-02.ll, but with doubles rather than floats. Internally this
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; uses a different register class, but the set of saved and restored
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; registers should be the same.
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;
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; RUN: llc < %s -mtriple=s390x-linux-gnu -mcpu=z10 | FileCheck %s
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; This function should require all FPRs, but no other spill slots.
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; We need to save and restore 8 of the 16 FPRs, so the frame size
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; should be exactly 8 * 8 = 64. The CFA offset is 160
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; (the caller-allocated part of the frame) + 64.
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define void @f1(double *%ptr) {
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; CHECK-LABEL: f1:
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; CHECK: aghi %r15, -64
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; CHECK: .cfi_def_cfa_offset 224
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; CHECK: std %f8, 56(%r15)
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; CHECK: std %f9, 48(%r15)
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; CHECK: std %f10, 40(%r15)
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; CHECK: std %f11, 32(%r15)
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; CHECK: std %f12, 24(%r15)
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; CHECK: std %f13, 16(%r15)
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; CHECK: std %f14, 8(%r15)
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; CHECK: std %f15, 0(%r15)
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; CHECK: .cfi_offset %f8, -168
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; CHECK: .cfi_offset %f9, -176
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; CHECK: .cfi_offset %f10, -184
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; CHECK: .cfi_offset %f11, -192
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; CHECK: .cfi_offset %f12, -200
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; CHECK: .cfi_offset %f13, -208
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; CHECK: .cfi_offset %f14, -216
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; CHECK: .cfi_offset %f15, -224
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; ...main function body...
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; CHECK: ld %f8, 56(%r15)
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; CHECK: ld %f9, 48(%r15)
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; CHECK: ld %f10, 40(%r15)
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; CHECK: ld %f11, 32(%r15)
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; CHECK: ld %f12, 24(%r15)
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; CHECK: ld %f13, 16(%r15)
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; CHECK: ld %f14, 8(%r15)
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; CHECK: ld %f15, 0(%r15)
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; CHECK: aghi %r15, 64
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; CHECK: br %r14
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%l0 = load volatile double, double *%ptr
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%l1 = load volatile double, double *%ptr
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%l2 = load volatile double, double *%ptr
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%l3 = load volatile double, double *%ptr
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%l4 = load volatile double, double *%ptr
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%l5 = load volatile double, double *%ptr
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%l6 = load volatile double, double *%ptr
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%l7 = load volatile double, double *%ptr
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%l8 = load volatile double, double *%ptr
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%l9 = load volatile double, double *%ptr
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%l10 = load volatile double, double *%ptr
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%l11 = load volatile double, double *%ptr
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%l12 = load volatile double, double *%ptr
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%l13 = load volatile double, double *%ptr
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%l14 = load volatile double, double *%ptr
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%l15 = load volatile double, double *%ptr
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%add0 = fadd double %l0, %l0
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%add1 = fadd double %l1, %add0
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%add2 = fadd double %l2, %add1
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%add3 = fadd double %l3, %add2
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%add4 = fadd double %l4, %add3
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%add5 = fadd double %l5, %add4
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%add6 = fadd double %l6, %add5
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%add7 = fadd double %l7, %add6
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%add8 = fadd double %l8, %add7
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%add9 = fadd double %l9, %add8
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%add10 = fadd double %l10, %add9
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%add11 = fadd double %l11, %add10
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%add12 = fadd double %l12, %add11
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%add13 = fadd double %l13, %add12
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%add14 = fadd double %l14, %add13
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%add15 = fadd double %l15, %add14
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store volatile double %add0, double *%ptr
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store volatile double %add1, double *%ptr
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store volatile double %add2, double *%ptr
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store volatile double %add3, double *%ptr
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store volatile double %add4, double *%ptr
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store volatile double %add5, double *%ptr
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store volatile double %add6, double *%ptr
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store volatile double %add7, double *%ptr
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store volatile double %add8, double *%ptr
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store volatile double %add9, double *%ptr
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store volatile double %add10, double *%ptr
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store volatile double %add11, double *%ptr
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store volatile double %add12, double *%ptr
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store volatile double %add13, double *%ptr
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store volatile double %add14, double *%ptr
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store volatile double %add15, double *%ptr
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ret void
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}
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; Like f1, but requires one fewer FPR. We allocate in numerical order,
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; so %f15 is the one that gets dropped.
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define void @f2(double *%ptr) {
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; CHECK-LABEL: f2:
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; CHECK: aghi %r15, -56
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; CHECK: .cfi_def_cfa_offset 216
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; CHECK: std %f8, 48(%r15)
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; CHECK: std %f9, 40(%r15)
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; CHECK: std %f10, 32(%r15)
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; CHECK: std %f11, 24(%r15)
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; CHECK: std %f12, 16(%r15)
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; CHECK: std %f13, 8(%r15)
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; CHECK: std %f14, 0(%r15)
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; CHECK: .cfi_offset %f8, -168
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; CHECK: .cfi_offset %f9, -176
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; CHECK: .cfi_offset %f10, -184
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; CHECK: .cfi_offset %f11, -192
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; CHECK: .cfi_offset %f12, -200
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; CHECK: .cfi_offset %f13, -208
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; CHECK: .cfi_offset %f14, -216
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; CHECK-NOT: %f15
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; ...main function body...
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; CHECK: ld %f8, 48(%r15)
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; CHECK: ld %f9, 40(%r15)
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; CHECK: ld %f10, 32(%r15)
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; CHECK: ld %f11, 24(%r15)
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; CHECK: ld %f12, 16(%r15)
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; CHECK: ld %f13, 8(%r15)
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; CHECK: ld %f14, 0(%r15)
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; CHECK: aghi %r15, 56
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; CHECK: br %r14
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%l0 = load volatile double, double *%ptr
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%l1 = load volatile double, double *%ptr
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%l2 = load volatile double, double *%ptr
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%l3 = load volatile double, double *%ptr
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%l4 = load volatile double, double *%ptr
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%l5 = load volatile double, double *%ptr
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%l6 = load volatile double, double *%ptr
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%l7 = load volatile double, double *%ptr
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%l8 = load volatile double, double *%ptr
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%l9 = load volatile double, double *%ptr
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%l10 = load volatile double, double *%ptr
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%l11 = load volatile double, double *%ptr
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%l12 = load volatile double, double *%ptr
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%l13 = load volatile double, double *%ptr
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%l14 = load volatile double, double *%ptr
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%add0 = fadd double %l0, %l0
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%add1 = fadd double %l1, %add0
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%add2 = fadd double %l2, %add1
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%add3 = fadd double %l3, %add2
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%add4 = fadd double %l4, %add3
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%add5 = fadd double %l5, %add4
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%add6 = fadd double %l6, %add5
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%add7 = fadd double %l7, %add6
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%add8 = fadd double %l8, %add7
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%add9 = fadd double %l9, %add8
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%add10 = fadd double %l10, %add9
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%add11 = fadd double %l11, %add10
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%add12 = fadd double %l12, %add11
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%add13 = fadd double %l13, %add12
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%add14 = fadd double %l14, %add13
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store volatile double %add0, double *%ptr
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store volatile double %add1, double *%ptr
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store volatile double %add2, double *%ptr
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store volatile double %add3, double *%ptr
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store volatile double %add4, double *%ptr
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store volatile double %add5, double *%ptr
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store volatile double %add6, double *%ptr
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store volatile double %add7, double *%ptr
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store volatile double %add8, double *%ptr
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store volatile double %add9, double *%ptr
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store volatile double %add10, double *%ptr
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store volatile double %add11, double *%ptr
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store volatile double %add12, double *%ptr
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store volatile double %add13, double *%ptr
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store volatile double %add14, double *%ptr
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ret void
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}
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; Like f1, but should require only one call-saved FPR.
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define void @f3(double *%ptr) {
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; CHECK-LABEL: f3:
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; CHECK: aghi %r15, -8
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; CHECK: .cfi_def_cfa_offset 168
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; CHECK: std %f8, 0(%r15)
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; CHECK: .cfi_offset %f8, -168
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; CHECK-NOT: %f9
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; CHECK-NOT: %f10
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; CHECK-NOT: %f11
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; CHECK-NOT: %f12
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; CHECK-NOT: %f13
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; CHECK-NOT: %f14
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; CHECK-NOT: %f15
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; ...main function body...
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; CHECK: ld %f8, 0(%r15)
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; CHECK: aghi %r15, 8
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; CHECK: br %r14
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%l0 = load volatile double, double *%ptr
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%l1 = load volatile double, double *%ptr
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%l2 = load volatile double, double *%ptr
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%l3 = load volatile double, double *%ptr
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%l4 = load volatile double, double *%ptr
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%l5 = load volatile double, double *%ptr
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%l6 = load volatile double, double *%ptr
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%l7 = load volatile double, double *%ptr
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%l8 = load volatile double, double *%ptr
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%add0 = fadd double %l0, %l0
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%add1 = fadd double %l1, %add0
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%add2 = fadd double %l2, %add1
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%add3 = fadd double %l3, %add2
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%add4 = fadd double %l4, %add3
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%add5 = fadd double %l5, %add4
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%add6 = fadd double %l6, %add5
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%add7 = fadd double %l7, %add6
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%add8 = fadd double %l8, %add7
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store volatile double %add0, double *%ptr
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store volatile double %add1, double *%ptr
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store volatile double %add2, double *%ptr
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store volatile double %add3, double *%ptr
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store volatile double %add4, double *%ptr
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store volatile double %add5, double *%ptr
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store volatile double %add6, double *%ptr
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store volatile double %add7, double *%ptr
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store volatile double %add8, double *%ptr
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ret void
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}
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; This function should use all call-clobbered FPRs but no call-saved ones.
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; It shouldn't need to create a frame.
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define void @f4(double *%ptr) {
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; CHECK-LABEL: f4:
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; CHECK-NOT: %r15
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; CHECK-NOT: %f8
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; CHECK-NOT: %f9
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; CHECK-NOT: %f10
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; CHECK-NOT: %f11
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; CHECK-NOT: %f12
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; CHECK-NOT: %f13
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; CHECK-NOT: %f14
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; CHECK-NOT: %f15
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; CHECK: br %r14
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%l0 = load volatile double, double *%ptr
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%l1 = load volatile double, double *%ptr
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%l2 = load volatile double, double *%ptr
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%l3 = load volatile double, double *%ptr
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%l4 = load volatile double, double *%ptr
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%l5 = load volatile double, double *%ptr
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%l6 = load volatile double, double *%ptr
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%l7 = load volatile double, double *%ptr
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%add0 = fadd double %l0, %l0
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%add1 = fadd double %l1, %add0
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%add2 = fadd double %l2, %add1
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%add3 = fadd double %l3, %add2
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%add4 = fadd double %l4, %add3
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%add5 = fadd double %l5, %add4
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%add6 = fadd double %l6, %add5
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%add7 = fadd double %l7, %add6
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store volatile double %add0, double *%ptr
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store volatile double %add1, double *%ptr
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store volatile double %add2, double *%ptr
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store volatile double %add3, double *%ptr
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store volatile double %add4, double *%ptr
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store volatile double %add5, double *%ptr
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store volatile double %add6, double *%ptr
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store volatile double %add7, double *%ptr
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ret void
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}
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