; RUN: opt -O2 -S -mtriple=bpf-pc-linux %s -o %t1 ; RUN: llc %t1 -o - | FileCheck -check-prefixes=CHECK,CHECK-V1 %s ; RUN: opt -O2 -S -mtriple=bpf-pc-linux %s -o %t1 ; RUN: llc %t1 -mcpu=v3 -o - | FileCheck -check-prefixes=CHECK,CHECK-V3 %s ; ; Source: ; int test1(unsigned long a) { ; if ((unsigned)a > 3) return 2; ; return 3; ; } ; int test2(unsigned long a) { ; if ((unsigned)a >= 4) return 2; ; return 3; ; } ; Compilation flag: ; clang -target bpf -O2 -S -emit-llvm -Xclang -disable-llvm-passes test.c ; Function Attrs: nounwind define dso_local i32 @test1(i64 %a) #0 { entry: %retval = alloca i32, align 4 %a.addr = alloca i64, align 8 store i64 %a, ptr %a.addr, align 8, !tbaa !3 %0 = load i64, ptr %a.addr, align 8, !tbaa !3 %conv = trunc i64 %0 to i32 %cmp = icmp ugt i32 %conv, 3 br i1 %cmp, label %if.then, label %if.end if.then: ; preds = %entry store i32 2, ptr %retval, align 4 br label %return if.end: ; preds = %entry store i32 3, ptr %retval, align 4 br label %return return: ; preds = %if.end, %if.then %1 = load i32, ptr %retval, align 4 ret i32 %1 } ; CHECK-LABEL: test1 ; CHECK-V1: if r[[#]] > 3 goto ; CHECK-V3: if w[[#]] > 3 goto ; Function Attrs: nounwind define dso_local i32 @test2(i64 %a) #0 { entry: %retval = alloca i32, align 4 %a.addr = alloca i64, align 8 store i64 %a, ptr %a.addr, align 8, !tbaa !3 %0 = load i64, ptr %a.addr, align 8, !tbaa !3 %conv = trunc i64 %0 to i32 %cmp = icmp uge i32 %conv, 4 br i1 %cmp, label %if.then, label %if.end if.then: ; preds = %entry store i32 2, ptr %retval, align 4 br label %return if.end: ; preds = %entry store i32 3, ptr %retval, align 4 br label %return return: ; preds = %if.end, %if.then %1 = load i32, ptr %retval, align 4 ret i32 %1 } ; CHECK-LABEL: test2 ; CHECK-V1: if r[[#]] > 3 goto ; CHECK-V3: if w[[#]] > 3 goto attributes #0 = { nounwind "frame-pointer"="all" "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" } !llvm.module.flags = !{!0, !1} !llvm.ident = !{!2} !0 = !{i32 1, !"wchar_size", i32 4} !1 = !{i32 7, !"frame-pointer", i32 2} !2 = !{!"clang version 14.0.0 (https://github.com/llvm/llvm-project.git 930ccf0191b4a33332d924522e5676fff583f083)"} !3 = !{!4, !4, i64 0} !4 = !{!"long", !5, i64 0} !5 = !{!"omnipotent char", !6, i64 0} !6 = !{!"Simple C/C++ TBAA"}