93 lines
2.4 KiB
LLVM
93 lines
2.4 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
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; RUN: llc -mtriple=thumbv8m.main-none-none-eabi %s -o - -verify-machineinstrs | FileCheck %s
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declare i32 @fn(i32) #0
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define i32 @f1(i32 %a) #0 {
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; CHECK-LABEL: f1:
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; CHECK: @ %bb.0: @ %entry
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; CHECK-NEXT: .save {r4, lr}
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; CHECK-NEXT: push {r4, lr}
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; CHECK-NEXT: mov r4, r0
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; CHECK-NEXT: bl fn
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; CHECK-NEXT: movs r0, #0
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; CHECK-NEXT: cbz r4, .LBB0_2
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; CHECK-NEXT: @ %bb.1: @ %return
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; CHECK-NEXT: pop {r4, pc}
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; CHECK-NEXT: .LBB0_2: @ %if.end
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; CHECK-NEXT: bl fn
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; CHECK-NEXT: adds r0, #1
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; CHECK-NEXT: pop {r4, pc}
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entry:
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%call = tail call i32 @fn(i32 %a) #2
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%tobool = icmp eq i32 %a, 0
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br i1 %tobool, label %if.end, label %return
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if.end: ; preds = %entry
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%call1 = tail call i32 @fn(i32 0) #2
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%add = add nsw i32 %call1, 1
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br label %return
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return: ; preds = %entry, %if.end
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%retval.0 = phi i32 [ %add, %if.end ], [ 0, %entry ]
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ret i32 %retval.0
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}
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define i32 @f2(i32 %a) #0 {
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; CHECK-LABEL: f2:
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; CHECK: @ %bb.0: @ %entry
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; CHECK-NEXT: .save {r4, lr}
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; CHECK-NEXT: push {r4, lr}
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; CHECK-NEXT: mov r4, r0
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; CHECK-NEXT: bl fn
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; CHECK-NEXT: movs r0, #0
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; CHECK-NEXT: cmp r4, #1
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; CHECK-NEXT: bne .LBB1_2
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; CHECK-NEXT: @ %bb.1: @ %if.end
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; CHECK-NEXT: bl fn
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; CHECK-NEXT: adds r0, #1
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; CHECK-NEXT: .LBB1_2: @ %return
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; CHECK-NEXT: pop {r4, pc}
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entry:
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%call = tail call i32 @fn(i32 %a) #2
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%tobool = icmp eq i32 %a, 1
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br i1 %tobool, label %if.end, label %return
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if.end: ; preds = %entry
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%call1 = tail call i32 @fn(i32 0) #2
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%add = add nsw i32 %call1, 1
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br label %return
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return: ; preds = %entry, %if.end
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%retval.0 = phi i32 [ %add, %if.end ], [ 0, %entry ]
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ret i32 %retval.0
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}
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define void @f3(i32 %x) #0 {
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; CHECK-LABEL: f3:
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; CHECK: @ %bb.0: @ %entry
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; CHECK-NEXT: cmp r0, #1
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; CHECK-NEXT: bne .LBB2_2
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; CHECK-NEXT: @ %bb.1: @ %t
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; CHECK-NEXT: .save {r7, lr}
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; CHECK-NEXT: push {r7, lr}
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; CHECK-NEXT: movs r0, #0
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; CHECK-NEXT: bl fn
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; CHECK-NEXT: pop.w {r7, lr}
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; CHECK-NEXT: .LBB2_2: @ %f
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; CHECK-NEXT: bx lr
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entry:
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%p = icmp eq i32 %x, 1
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br i1 %p, label %t, label %f
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t:
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call i32 @fn(i32 0)
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br label %f
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f:
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ret void
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}
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attributes #0 = { minsize nounwind optsize }
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