| ; RUN: llc -march=hexagon -mcpu=hexagonv5 < %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* @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* @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* @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* @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 |
| } |