diff options
Diffstat (limited to 'test')
| -rw-r--r-- | test/CodeGen/ARM/pr25838.ll | 2 | ||||
| -rw-r--r-- | test/CodeGen/Thumb/stm-scavenging.ll | 46 |
2 files changed, 47 insertions, 1 deletions
diff --git a/test/CodeGen/ARM/pr25838.ll b/test/CodeGen/ARM/pr25838.ll index 0aa95fd2d72..f3bb98f4260 100644 --- a/test/CodeGen/ARM/pr25838.ll +++ b/test/CodeGen/ARM/pr25838.ll @@ -1,4 +1,4 @@ -; RUN: llc < %s +; RUN: llc -verify-machineinstrs < %s ; PR25838 target triple = "armv7--linux-android" diff --git a/test/CodeGen/Thumb/stm-scavenging.ll b/test/CodeGen/Thumb/stm-scavenging.ll new file mode 100644 index 00000000000..3ed5763f295 --- /dev/null +++ b/test/CodeGen/Thumb/stm-scavenging.ll @@ -0,0 +1,46 @@ +; RUN: llc < %s | FileCheck %s +target triple = "thumbv6---gnueabi" + +; Use STM to save the three registers +; CHECK-LABEL: use_stm: +; CHECK: .save {r7, lr} +; CHECK: .setfp r7, sp +; CHECK: stm r3!, {r0, r1, r2} +; CHECK: bl throws_1 +define void @use_stm(i32 %a, i32 %b, i32 %c, i32* %d) local_unnamed_addr noreturn "no-frame-pointer-elim"="true" { +entry: + %arrayidx = getelementptr inbounds i32, i32* %d, i32 2 + store i32 %a, i32* %arrayidx, align 4 + %arrayidx1 = getelementptr inbounds i32, i32* %d, i32 3 + store i32 %b, i32* %arrayidx1, align 4 + %arrayidx2 = getelementptr inbounds i32, i32* %d, i32 4 + store i32 %c, i32* %arrayidx2, align 4 + tail call void @throws_1(i32 %a, i32 %b, i32 %c) noreturn + unreachable +} + +; Don't use STM: there is no available register to store +; the address. We could transform this with some extra math, but +; that currently isn't implemented. +; CHECK-LABEL: no_stm: +; CHECK: .save {r7, lr} +; CHECK: .setfp r7, sp +; CHECK: str r0, +; CHECK: str r1, +; CHECK: str r2, +; CHECK: bl throws_2 +define void @no_stm(i32 %a, i32 %b, i32 %c, i32* %d) local_unnamed_addr noreturn "no-frame-pointer-elim"="true" { +entry: + %arrayidx = getelementptr inbounds i32, i32* %d, i32 2 + store i32 %a, i32* %arrayidx, align 4 + %arrayidx1 = getelementptr inbounds i32, i32* %d, i32 3 + store i32 %b, i32* %arrayidx1, align 4 + %arrayidx2 = getelementptr inbounds i32, i32* %d, i32 4 + store i32 %c, i32* %arrayidx2, align 4 + tail call void @throws_2(i32 %a, i32 %b, i32 %c, i32* %d) noreturn + unreachable +} + + +declare void @throws_1(i32, i32, i32) noreturn +declare void @throws_2(i32, i32, i32, i32*) noreturn |