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; RUN: llc -march=bpfel -filetype=obj -o - %s | llvm-objdump -d - | FileCheck %s
; Source Code:
; int gbl;
; int test(int a, int b) {
; if (a == 2) {
; gbl = gbl * gbl * 2;
; goto out;
; }
; if (a != b) {
; gbl = gbl * 4;
; }
; out:
; return gbl;
; }
@gbl = common local_unnamed_addr global i32 0, align 4
define i32 @test(i32, i32) local_unnamed_addr #0 {
%3 = icmp eq i32 %0, 2
br i1 %3, label %4, label %8
; <label>:4: ; preds = %2
%5 = load i32, i32* @gbl, align 4
%6 = shl i32 %5, 1
%7 = mul i32 %6, %5
br label %13
; CHECK: r1 <<= 32
; CHECK: r1 >>= 32
; CHECK: if r1 != 2 goto +6 <LBB0_2>
; <label>:8: ; preds = %2
%9 = icmp eq i32 %0, %1
%10 = load i32, i32* @gbl, align 4
br i1 %9, label %15, label %11
; CHECK: r1 = 0 ll
; CHECK: r0 = *(u32 *)(r1 + 0)
; CHECK: r0 *= r0
; CHECK: r0 <<= 1
; CHECK: goto +7 <LBB0_4>
; <label>:11: ; preds = %8
%12 = shl nsw i32 %10, 2
br label %13
; CHECK-LABEL: <LBB0_2>:
; CHECK: r3 = 0 ll
; CHECK: r0 = *(u32 *)(r3 + 0)
; CHECK: r2 <<= 32
; CHECK: r2 >>= 32
; CHECK: if r1 == r2 goto +4 <LBB0_5>
; CHECK: r0 <<= 2
; <label>:13: ; preds = %4, %11
%14 = phi i32 [ %12, %11 ], [ %7, %4 ]
store i32 %14, i32* @gbl, align 4
br label %15
; CHECK-LABEL: <LBB0_4>:
; CHECK: r1 = 0 ll
; CHECK: *(u32 *)(r1 + 0) = r0
; <label>:15: ; preds = %8, %13
%16 = phi i32 [ %14, %13 ], [ %10, %8 ]
ret i32 %16
; CHECK-LABEL: <LBB0_5>:
; CHECK: exit
}
attributes #0 = { norecurse nounwind }
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