diff options
Diffstat (limited to 'test/CodeGen/X86/fast-isel-select-cmov.ll')
-rw-r--r-- | test/CodeGen/X86/fast-isel-select-cmov.ll | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/test/CodeGen/X86/fast-isel-select-cmov.ll b/test/CodeGen/X86/fast-isel-select-cmov.ll new file mode 100644 index 0000000..8008e28 --- /dev/null +++ b/test/CodeGen/X86/fast-isel-select-cmov.ll @@ -0,0 +1,62 @@ +; RUN: llc < %s -fast-isel -fast-isel-abort -mtriple=x86_64-apple-darwin10 | FileCheck %s + +; Test conditional move for the supported types (i16, i32, and i32) and +; conditon input (argument or cmp). Currently i8 is not supported. + +define zeroext i16 @select_cmov_i16(i1 zeroext %cond, i16 zeroext %a, i16 zeroext %b) { +; CHECK-LABEL: select_cmov_i16 +; CHECK: testb $1, %dil +; CHECK-NEXT: cmovew %dx, %si +; CHECK-NEXT: movzwl %si, %eax + %1 = select i1 %cond, i16 %a, i16 %b + ret i16 %1 +} + +define zeroext i16 @select_cmp_cmov_i16(i16 zeroext %a, i16 zeroext %b) { +; CHECK-LABEL: select_cmp_cmov_i16 +; CHECK: cmpw %si, %di +; CHECK-NEXT: cmovbw %di, %si +; CHECK-NEXT: movzwl %si, %eax + %1 = icmp ult i16 %a, %b + %2 = select i1 %1, i16 %a, i16 %b + ret i16 %2 +} + +define i32 @select_cmov_i32(i1 zeroext %cond, i32 %a, i32 %b) { +; CHECK-LABEL: select_cmov_i32 +; CHECK: testb $1, %dil +; CHECK-NEXT: cmovel %edx, %esi +; CHECK-NEXT: movl %esi, %eax + %1 = select i1 %cond, i32 %a, i32 %b + ret i32 %1 +} + +define i32 @select_cmp_cmov_i32(i32 %a, i32 %b) { +; CHECK-LABEL: select_cmp_cmov_i32 +; CHECK: cmpl %esi, %edi +; CHECK-NEXT: cmovbl %edi, %esi +; CHECK-NEXT: movl %esi, %eax + %1 = icmp ult i32 %a, %b + %2 = select i1 %1, i32 %a, i32 %b + ret i32 %2 +} + +define i64 @select_cmov_i64(i1 zeroext %cond, i64 %a, i64 %b) { +; CHECK-LABEL: select_cmov_i64 +; CHECK: testb $1, %dil +; CHECK-NEXT: cmoveq %rdx, %rsi +; CHECK-NEXT: movq %rsi, %rax + %1 = select i1 %cond, i64 %a, i64 %b + ret i64 %1 +} + +define i64 @select_cmp_cmov_i64(i64 %a, i64 %b) { +; CHECK-LABEL: select_cmp_cmov_i64 +; CHECK: cmpq %rsi, %rdi +; CHECK-NEXT: cmovbq %rdi, %rsi +; CHECK-NEXT: movq %rsi, %rax + %1 = icmp ult i64 %a, %b + %2 = select i1 %1, i64 %a, i64 %b + ret i64 %2 +} + |