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; RUN: llc -march=hexagon < %s | FileCheck %s
; Make sure that the assembler mapped compare instructions are correctly generated.
@c = common global i32 0, align 4
define i32 @test1(i32 %a, i32 %b) nounwind {
; CHECK-NOT: cmp.ge
; CHECK: cmp.gt
entry:
%cmp = icmp slt i32 %a, 100
br i1 %cmp, label %if.then, label %entry.if.end_crit_edge
entry.if.end_crit_edge:
%.pre = load i32, i32* @c, align 4
br label %if.end
if.then:
%sub = add nsw i32 %a, -10
store i32 %sub, i32* @c, align 4
br label %if.end
if.end:
%0 = phi i32 [ %.pre, %entry.if.end_crit_edge ], [ %sub, %if.then ]
ret i32 %0
}
define i32 @test2(i32 %a, i32 %b) nounwind {
; CHECK-NOT: cmp.lt
; CHECK: cmp.gt
entry:
%cmp = icmp sge i32 %a, %b
br i1 %cmp, label %entry.if.end_crit_edge, label %if.then
entry.if.end_crit_edge:
%.pre = load i32, i32* @c, align 4
br label %if.end
if.then:
%sub = add nsw i32 %a, -10
store i32 %sub, i32* @c, align 4
br label %if.end
if.end:
%0 = phi i32 [ %.pre, %entry.if.end_crit_edge ], [ %sub, %if.then ]
ret i32 %0
}
define i32 @test4(i32 %a, i32 %b) nounwind {
; CHECK-NOT: cmp.ltu
; CHECK: cmp.gtu
entry:
%cmp = icmp uge i32 %a, %b
br i1 %cmp, label %entry.if.end_crit_edge, label %if.then
entry.if.end_crit_edge:
%.pre = load i32, i32* @c, align 4
br label %if.end
if.then:
%sub = add i32 %a, -10
store i32 %sub, i32* @c, align 4
br label %if.end
if.end:
%0 = phi i32 [ %.pre, %entry.if.end_crit_edge ], [ %sub, %if.then ]
ret i32 %0
}
define i32 @test5(i32 %a, i32 %b) nounwind {
; CHECK: cmp.gtu
entry:
%cmp = icmp uge i32 %a, 29999
br i1 %cmp, label %if.then, label %entry.if.end_crit_edge
entry.if.end_crit_edge:
%.pre = load i32, i32* @c, align 4
br label %if.end
if.then:
%sub = add i32 %a, -10
store i32 %sub, i32* @c, align 4
br label %if.end
if.end:
%0 = phi i32 [ %.pre, %entry.if.end_crit_edge ], [ %sub, %if.then ]
ret i32 %0
}
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