diff options
Diffstat (limited to 'test/CodeGen/ARM/inlineasm-64bit.ll')
| -rw-r--r-- | test/CodeGen/ARM/inlineasm-64bit.ll | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/test/CodeGen/ARM/inlineasm-64bit.ll b/test/CodeGen/ARM/inlineasm-64bit.ll index b23db10..683a0c4 100644 --- a/test/CodeGen/ARM/inlineasm-64bit.ll +++ b/test/CodeGen/ARM/inlineasm-64bit.ll @@ -85,3 +85,22 @@ define void @strd_test(i64* %p, i32 %lo, i32 %hi) nounwind { tail call void asm sideeffect "strd $0, ${0:H}, [$1]", "r,r"(i64 %4, i64* %p) nounwind ret void } + +; Make sure we don't untie operands by mistake. +define i64 @tied_64bit_test(i64 %in) nounwind { +; CHECK-LABEL: tied_64bit_test: +; CHECK: OUT([[OUTREG:r[0-9]+]]), IN([[OUTREG]]) + %addr = alloca i64 + call void asm "OUT($0), IN($1)", "=*rm,0"(i64* %addr, i64 %in) + ret i64 %in +} + +; If we explicitly name a tied operand, then the code should lookup the operand +; we were tied to for information about register class and so on. +define i64 @tied_64bit_lookback_test(i64 %in) nounwind { +; CHECK-LABEL: tied_64bit_lookback_test: +; CHECK: OUTLO([[LO:r[0-9]+]]) OUTHI([[HI:r[0-9]+]]) INLO([[LO]]) INHI([[HI]]) + %vars = call {i64, i32, i64} asm "OUTLO(${2:Q}) OUTHI(${2:R}) INLO(${3:Q}) INHI(${3:R})", "=r,=r,=r,2"(i64 %in) + %res = extractvalue {i64, i32, i64} %vars, 2 + ret i64 %res +} |