97 lines
2.1 KiB
LLVM
97 lines
2.1 KiB
LLVM
; Test population-count instruction
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;
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; RUN: llc < %s -mtriple=s390x-linux-gnu -mcpu=z196 | FileCheck %s
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declare i32 @llvm.ctpop.i32(i32 %a)
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declare i64 @llvm.ctpop.i64(i64 %a)
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define i32 @f1(i32 %a) {
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; CHECK-LABEL: f1:
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; CHECK: popcnt %r0, %r2
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; CHECK: sllk %r1, %r0, 16
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; CHECK: ar %r1, %r0
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; CHECK: sllk %r2, %r1, 8
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; CHECK: ar %r2, %r1
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; CHECK: srl %r2, 24
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; CHECK: br %r14
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%popcnt = call i32 @llvm.ctpop.i32(i32 %a)
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ret i32 %popcnt
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}
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define i32 @f2(i32 %a) {
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; CHECK-LABEL: f2:
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; CHECK: llhr %r0, %r2
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; CHECK: popcnt %r0, %r0
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; CHECK: risblg %r2, %r0, 16, 151, 8
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; CHECK: ar %r2, %r0
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; CHECK: srl %r2, 8
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; CHECK: br %r14
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%and = and i32 %a, 65535
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%popcnt = call i32 @llvm.ctpop.i32(i32 %and)
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ret i32 %popcnt
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}
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define i32 @f3(i32 %a) {
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; CHECK-LABEL: f3:
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; CHECK: llcr %r0, %r2
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; CHECK: popcnt %r2, %r0
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; CHECK: br %r14
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%and = and i32 %a, 255
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%popcnt = call i32 @llvm.ctpop.i32(i32 %and)
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ret i32 %popcnt
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}
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define i64 @f4(i64 %a) {
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; CHECK-LABEL: f4:
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; CHECK: popcnt %r0, %r2
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; CHECK: sllg %r1, %r0, 32
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; CHECK: agr %r1, %r0
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; CHECK: sllg %r0, %r1, 16
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; CHECK: agr %r0, %r1
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; CHECK: sllg %r1, %r0, 8
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; CHECK: agr %r1, %r0
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; CHECK: srlg %r2, %r1, 56
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; CHECK: br %r14
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%popcnt = call i64 @llvm.ctpop.i64(i64 %a)
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ret i64 %popcnt
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}
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define i64 @f5(i64 %a) {
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; CHECK-LABEL: f5:
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; CHECK: llgfr %r0, %r2
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; CHECK: popcnt %r0, %r0
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; CHECK: sllg %r1, %r0, 16
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; CHECK: algfr %r0, %r1
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; CHECK: sllg %r1, %r0, 8
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; CHECK: algfr %r0, %r1
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; CHECK: srlg %r2, %r0, 24
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%and = and i64 %a, 4294967295
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%popcnt = call i64 @llvm.ctpop.i64(i64 %and)
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ret i64 %popcnt
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}
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define i64 @f6(i64 %a) {
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; CHECK-LABEL: f6:
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; CHECK: llghr %r0, %r2
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; CHECK: popcnt %r0, %r0
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; CHECK: risbg %r1, %r0, 48, 183, 8
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; CHECK: agr %r1, %r0
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; CHECK: srlg %r2, %r1, 8
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; CHECK: br %r14
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%and = and i64 %a, 65535
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%popcnt = call i64 @llvm.ctpop.i64(i64 %and)
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ret i64 %popcnt
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}
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define i64 @f7(i64 %a) {
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; CHECK-LABEL: f7:
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; CHECK: llgcr %r0, %r2
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; CHECK: popcnt %r2, %r0
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; CHECK: br %r14
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%and = and i64 %a, 255
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%popcnt = call i64 @llvm.ctpop.i64(i64 %and)
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ret i64 %popcnt
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}
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