diff options
Diffstat (limited to 'test/CodeGen/Mips/inlineasm-cnstrnt-reg.ll')
| -rw-r--r-- | test/CodeGen/Mips/inlineasm-cnstrnt-reg.ll | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/test/CodeGen/Mips/inlineasm-cnstrnt-reg.ll b/test/CodeGen/Mips/inlineasm-cnstrnt-reg.ll new file mode 100644 index 0000000..94ded30 --- /dev/null +++ b/test/CodeGen/Mips/inlineasm-cnstrnt-reg.ll @@ -0,0 +1,44 @@ +; Positive test for inline register constraints +; +; RUN: llc -march=mipsel < %s | FileCheck %s + +define i32 @main() nounwind { +entry: + +; r with char +;CHECK: #APP +;CHECK: addi ${{[0-9]+}},${{[0-9]+}},23 +;CHECK: #NO_APP + tail call i8 asm sideeffect "addi $0,$1,$2", "=r,r,n"(i8 27, i8 23) nounwind + +; r with short +;CHECK: #APP +;CHECK: addi ${{[0-9]+}},${{[0-9]+}},13 +;CHECK: #NO_APP + tail call i16 asm sideeffect "addi $0,$1,$2", "=r,r,n"(i16 17, i16 13) nounwind + +; r with int +;CHECK: #APP +;CHECK: addi ${{[0-9]+}},${{[0-9]+}},3 +;CHECK: #NO_APP + tail call i32 asm sideeffect "addi $0,$1,$2", "=r,r,n"(i32 7, i32 3) nounwind + +; Now c with 1024: make sure register $25 is picked +; CHECK: #APP +; CHECK: addi $25,${{[0-9]+}},1024 +; CHECK: #NO_APP + tail call i32 asm sideeffect "addi $0,$1,$2", "=c,c,I"(i32 4194304, i32 1024) nounwind + +; Now l with 1024: make sure register lo is picked. We do this by checking the instruction +; after the inline expression for a mflo to pull the value out of lo. +; CHECK: #APP +; CHECK-NEXT: mtlo ${{[0-9]+}} +; CHECK-NEXT: madd ${{[0-9]+}},${{[0-9]+}} +; CHECK-NEXT: #NO_APP +; CHECK-NEXT: mflo ${{[0-9]+}} + %bosco = alloca i32, align 4 + call i32 asm sideeffect "\09mtlo $3 \0A\09\09madd $1,$2 ", "=l,r,r,r"(i32 7, i32 6, i32 44) nounwind + store volatile i32 %4, i32* %bosco, align 4 + + ret i32 0 +} |
