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Diffstat (limited to 'test/CodeGen/Thumb/ldm-merge-struct.ll')
| -rw-r--r-- | test/CodeGen/Thumb/ldm-merge-struct.ll | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/test/CodeGen/Thumb/ldm-merge-struct.ll b/test/CodeGen/Thumb/ldm-merge-struct.ll new file mode 100644 index 0000000..2f732e0 --- /dev/null +++ b/test/CodeGen/Thumb/ldm-merge-struct.ll @@ -0,0 +1,21 @@ +; RUN: llc -mtriple=thumbv6m-eabi -verify-machineinstrs %s -o - | FileCheck %s +target datalayout = "e-m:e-p:32:32-i1:8:32-i8:8:32-i16:16:32-i64:64-v128:64:128-a:0:32-n32-S64" +target triple = "thumbv6m-none--eabi" + +%struct.S = type { i32, i32 } + +@s = common global %struct.S zeroinitializer, align 4 + +define i32 @f() { +entry: +; CHECK-LABEL: f: +; CHECK: ldm r[[BASE:[0-9]]], +; CHECK-NEXT-NOT: subs r[[BASE]] + %0 = load i32* getelementptr inbounds (%struct.S* @s, i32 0, i32 0), align 4 + %1 = load i32* getelementptr inbounds (%struct.S* @s, i32 0, i32 1), align 4 + %cmp = icmp sgt i32 %0, %1 + %2 = sub i32 0, %1 + %cond.p = select i1 %cmp, i32 %1, i32 %2 + %cond = add i32 %cond.p, %0 + ret i32 %cond +} |