45 lines · plain
1; RUN: llc < %s -mtriple=i386-apple-darwin -frame-pointer=all -no-x86-call-frame-opt | FileCheck %s2 3 %struct.decode_t = type { i8, i8, i8, i8, i16, i8, i8, ptr }4 %struct.range_t = type { float, float, i32, i32, i32, [0 x i8] }5 6define i32 @decode_byte(ptr %decode) nounwind {7; CHECK-LABEL: decode_byte:8; CHECK: pushl9; CHECK: popl10; CHECK: jmp11; CHECK: popl12entry:13 %tmp2 = getelementptr %struct.decode_t, ptr %decode, i32 0, i32 4 ; <ptr> [#uses=1]14 %tmp4 = load i32, ptr %tmp2 ; <i32> [#uses=1]15 %tmp514 = lshr i32 %tmp4, 24 ; <i32> [#uses=1]16 %tmp56 = trunc i32 %tmp514 to i8 ; <i8> [#uses=1]17 %tmp7 = icmp eq i8 %tmp56, 0 ; <i1> [#uses=1]18 br i1 %tmp7, label %UnifiedReturnBlock, label %cond_true19 20cond_true: ; preds = %entry21 %tmp10 = tail call i32 @f( ptr %decode ) ; <i32> [#uses=1]22 ret i32 %tmp1023 24UnifiedReturnBlock: ; preds = %entry25 ret i32 026}27 28declare i32 @f(ptr)29 30 31; There should be no store for the undef operand.32 33; CHECK: _test2:34; CHECK-NOT: 8(%esp)35; CHECK: 4(%esp)36; CHECK-NOT: 8(%esp)37; CHECK: calll 38declare i32 @foo(i32, i32, i32)39 40define void @test2() nounwind {41entry:42 %call = call i32 @foo(i32 8, i32 6, i32 undef)43 ret void44}45