diff options
Diffstat (limited to 'test/CodeGen/ARM/gpr-paired-spill-thumbinst.ll')
| -rw-r--r-- | test/CodeGen/ARM/gpr-paired-spill-thumbinst.ll | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/test/CodeGen/ARM/gpr-paired-spill-thumbinst.ll b/test/CodeGen/ARM/gpr-paired-spill-thumbinst.ll new file mode 100644 index 0000000..0002711 --- /dev/null +++ b/test/CodeGen/ARM/gpr-paired-spill-thumbinst.ll @@ -0,0 +1,30 @@ +; REQUIRES: asserts +; RUN: llc -mtriple=thumbv7-none-linux-gnueabi -debug -o /dev/null < %s 2>&1 | FileCheck %s + +; This test makes sure spills of 64-bit pairs in Thumb mode actually +; generate thumb instructions. Previously we were inserting an ARM +; STMIA which happened to have the same encoding. + +define void @foo(i64* %addr) { + %val1 = tail call i64 asm sideeffect "ldrexd $0, ${0:H}, [r0]", "=&r,r"(i64* %addr) + %val2 = tail call i64 asm sideeffect "ldrexd $0, ${0:H}, [r0]", "=&r,r"(i64* %addr) + %val3 = tail call i64 asm sideeffect "ldrexd $0, ${0:H}, [r0]", "=&r,r"(i64* %addr) + %val4 = tail call i64 asm sideeffect "ldrexd $0, ${0:H}, [r0]", "=&r,r"(i64* %addr) + %val5 = tail call i64 asm sideeffect "ldrexd $0, ${0:H}, [r0]", "=&r,r"(i64* %addr) + %val6 = tail call i64 asm sideeffect "ldrexd $0, ${0:H}, [r0]", "=&r,r"(i64* %addr) + %val7 = tail call i64 asm sideeffect "ldrexd $0, ${0:H}, [r0]", "=&r,r"(i64* %addr) + + ; Make sure we are actually creating the Thumb versions of the spill + ; instructions. +; CHECK: t2STRDi8 +; CHECK: t2LDRDi8 + + store volatile i64 %val1, i64* %addr + store volatile i64 %val2, i64* %addr + store volatile i64 %val3, i64* %addr + store volatile i64 %val4, i64* %addr + store volatile i64 %val5, i64* %addr + store volatile i64 %val6, i64* %addr + store volatile i64 %val7, i64* %addr + ret void +} |
