llvm-6502/test/CodeGen/X86/pre-ra-sched.ll

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; RUN: llc < %s -mtriple=x86_64-apple-macosx -debug-only=pre-RA-sched \
; RUN: 2>&1 | FileCheck %s
; REQUIRES: asserts
;
; rdar:13279013: pre-RA-sched should not check all interferences and
; repush them on the ready queue after scheduling each instruction.
;
; CHECK: *** List Scheduling
; CHECK: Interfering reg EFLAGS
; CHECK: Repushing
; CHECK: Repushing
; CHECK: Repushing
; CHECK-NOT: Repushing
; CHECK: *** Final schedule
define i32 @test(i8* %pin) #0 {
%g0 = getelementptr inbounds i8* %pin, i64 0
%l0 = load i8* %g0, align 1
%g1a = getelementptr inbounds i8* %pin, i64 1
%l1a = load i8* %g1a, align 1
%z1a = zext i8 %l1a to i32
%g1b = getelementptr inbounds i8* %pin, i64 2
%l1b = load i8* %g1b, align 1
%z1b = zext i8 %l1b to i32
%c1 = icmp ne i8 %l0, 0
%x1 = xor i32 %z1a, %z1b
%s1 = select i1 %c1, i32 %z1a, i32 %x1
%g2a = getelementptr inbounds i8* %pin, i64 3
%l2a = load i8* %g2a, align 1
%z2a = zext i8 %l2a to i32
%g2b = getelementptr inbounds i8* %pin, i64 4
%l2b = load i8* %g2b, align 1
%z2b = zext i8 %l2b to i32
%x2 = xor i32 %z2a, %z2b
%s2 = select i1 %c1, i32 %z2a, i32 %x2
%g3a = getelementptr inbounds i8* %pin, i64 5
%l3a = load i8* %g3a, align 1
%z3a = zext i8 %l3a to i32
%g3b = getelementptr inbounds i8* %pin, i64 6
%l3b = load i8* %g3b, align 1
%z3b = zext i8 %l3b to i32
%x3 = xor i32 %z3a, %z3b
%s3 = select i1 %c1, i32 %z3a, i32 %x3
%c3 = icmp ne i8 %l1a, 0
%c4 = icmp ne i8 %l2a, 0
%s4 = select i1 %c3, i32 %s1, i32 %s2
%s5 = select i1 %c4, i32 %s4, i32 %s3
ret i32 %s5
}
attributes #0 = { nounwind ssp uwtable }