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|
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 4
; RUN: opt -S -passes=instcombine < %s | FileCheck %s
define i1 @test1(float %x) {
; CHECK-LABEL: define i1 @test1(
; CHECK-SAME: float [[X:%.*]]) {
; CHECK-NEXT: entry:
; CHECK-NEXT: [[COND:%.*]] = fcmp ueq float [[X]], 0.000000e+00
; CHECK-NEXT: br i1 [[COND]], label [[IF_THEN:%.*]], label [[IF_ELSE:%.*]]
; CHECK: if.then:
; CHECK-NEXT: ret i1 false
; CHECK: if.else:
; CHECK-NEXT: [[RET:%.*]] = call i1 @llvm.is.fpclass.f32(float [[X]], i32 780)
; CHECK-NEXT: ret i1 [[RET]]
;
entry:
%cond = fcmp ueq float %x, 0.000000e+00
br i1 %cond, label %if.then, label %if.else
if.then:
ret i1 false
if.else:
%ret = call i1 @llvm.is.fpclass.f32(float %x, i32 783)
ret i1 %ret
}
define i1 @test2(double %x) {
; CHECK-LABEL: define i1 @test2(
; CHECK-SAME: double [[X:%.*]]) {
; CHECK-NEXT: entry:
; CHECK-NEXT: [[CMP:%.*]] = fcmp olt double [[X]], 0x3EB0C6F7A0000000
; CHECK-NEXT: br i1 [[CMP]], label [[IF_THEN:%.*]], label [[IF_END:%.*]]
; CHECK: if.then:
; CHECK-NEXT: ret i1 false
; CHECK: if.end:
; CHECK-NEXT: ret i1 false
;
entry:
%cmp = fcmp olt double %x, 0x3EB0C6F7A0000000
br i1 %cmp, label %if.then, label %if.end
if.then:
ret i1 false
if.end:
%cmp.i = fcmp oeq double %x, 0.000000e+00
ret i1 %cmp.i
}
define i1 @test3(float %x) {
; CHECK-LABEL: define i1 @test3(
; CHECK-SAME: float [[X:%.*]]) {
; CHECK-NEXT: entry:
; CHECK-NEXT: [[CMP:%.*]] = fcmp ogt float [[X]], 3.000000e+00
; CHECK-NEXT: br i1 [[CMP]], label [[IF_THEN:%.*]], label [[IF_ELSE:%.*]]
; CHECK: if.then:
; CHECK-NEXT: [[RET:%.*]] = fcmp oeq float [[X]], 0x7FF0000000000000
; CHECK-NEXT: ret i1 [[RET]]
; CHECK: if.else:
; CHECK-NEXT: ret i1 false
;
entry:
%cmp = fcmp ogt float %x, 3.000000e+00
br i1 %cmp, label %if.then, label %if.else
if.then:
%abs = call float @llvm.fabs.f32(float %x)
%ret = fcmp oeq float %abs, 0x7FF0000000000000
ret i1 %ret
if.else:
ret i1 false
}
define float @test4(float %x) {
; CHECK-LABEL: define float @test4(
; CHECK-SAME: float [[X:%.*]]) {
; CHECK-NEXT: entry:
; CHECK-NEXT: [[CMP:%.*]] = fcmp olt float [[X]], 0x3EB0C6F7A0000000
; CHECK-NEXT: br i1 [[CMP]], label [[IF_THEN:%.*]], label [[IF_END:%.*]]
; CHECK: if.then:
; CHECK-NEXT: ret float 1.000000e+00
; CHECK: if.end:
; CHECK-NEXT: [[DIV:%.*]] = fdiv float 1.000000e+00, [[X]]
; CHECK-NEXT: ret float [[DIV]]
;
entry:
%cmp = fcmp olt float %x, 0x3EB0C6F7A0000000
br i1 %cmp, label %if.then, label %if.end
if.then:
ret float 1.0
if.end:
%cmp.i = fcmp oeq float %x, 0.000000e+00
%div = fdiv float 1.000000e+00, %x
%ret = select i1 %cmp.i, float 1.000000e+00, float %div
ret float %ret
}
define i1 @test5(double %x, i1 %cond) {
; CHECK-LABEL: define i1 @test5(
; CHECK-SAME: double [[X:%.*]], i1 [[COND:%.*]]) {
; CHECK-NEXT: entry:
; CHECK-NEXT: br i1 [[COND]], label [[IF:%.*]], label [[EXIT:%.*]]
; CHECK: if:
; CHECK-NEXT: [[CMP:%.*]] = fcmp uno double [[X]], 0.000000e+00
; CHECK-NEXT: br i1 [[CMP]], label [[IF_THEN:%.*]], label [[IF_END:%.*]]
; CHECK: if.then:
; CHECK-NEXT: ret i1 false
; CHECK: if.end:
; CHECK-NEXT: br label [[EXIT]]
; CHECK: exit:
; CHECK-NEXT: [[Y:%.*]] = phi double [ -1.000000e+00, [[ENTRY:%.*]] ], [ [[X]], [[IF_END]] ]
; CHECK-NEXT: [[RET:%.*]] = tail call i1 @llvm.is.fpclass.f64(double [[Y]], i32 408)
; CHECK-NEXT: ret i1 [[RET]]
;
entry:
br i1 %cond, label %if, label %exit
if:
%cmp = fcmp uno double %x, 0.000000e+00
br i1 %cmp, label %if.then, label %if.end
if.then:
ret i1 false
if.end:
br label %exit
exit:
%y = phi double [ -1.000000e+00, %entry ], [ %x, %if.end ]
%ret = tail call i1 @llvm.is.fpclass.f64(double %y, i32 411)
ret i1 %ret
}
define i1 @test6(double %x) {
; CHECK-LABEL: define i1 @test6(
; CHECK-SAME: double [[X:%.*]]) {
; CHECK-NEXT: entry:
; CHECK-NEXT: [[CMP:%.*]] = fcmp ogt double [[X]], 0.000000e+00
; CHECK-NEXT: br i1 [[CMP]], label [[LAND_RHS:%.*]], label [[LAND_END:%.*]]
; CHECK: land.rhs:
; CHECK-NEXT: [[CMP_I:%.*]] = fcmp oeq double [[X]], 0x7FF0000000000000
; CHECK-NEXT: br label [[LAND_END]]
; CHECK: land.end:
; CHECK-NEXT: [[RET:%.*]] = phi i1 [ false, [[ENTRY:%.*]] ], [ [[CMP_I]], [[LAND_RHS]] ]
; CHECK-NEXT: ret i1 [[RET]]
;
entry:
%cmp = fcmp ogt double %x, 0.000000e+00
br i1 %cmp, label %land.rhs, label %land.end
land.rhs:
%abs = tail call double @llvm.fabs.f64(double %x)
%and.i = bitcast double %abs to i64
%cmp.i = icmp eq i64 %and.i, 9218868437227405312
br label %land.end
land.end:
%ret = phi i1 [ false, %entry ], [ %cmp.i, %land.rhs ]
ret i1 %ret
}
define i1 @test7(float %x) {
; CHECK-LABEL: define i1 @test7(
; CHECK-SAME: float [[X:%.*]]) {
; CHECK-NEXT: [[COND:%.*]] = call i1 @llvm.is.fpclass.f32(float [[X]], i32 345)
; CHECK-NEXT: br i1 [[COND]], label [[IF_THEN:%.*]], label [[IF_ELSE:%.*]]
; CHECK: if.then:
; CHECK-NEXT: [[RET1:%.*]] = call i1 @llvm.is.fpclass.f32(float [[X]], i32 328)
; CHECK-NEXT: ret i1 [[RET1]]
; CHECK: if.else:
; CHECK-NEXT: [[RET2:%.*]] = call i1 @llvm.is.fpclass.f32(float [[X]], i32 128)
; CHECK-NEXT: ret i1 [[RET2]]
;
%cond = call i1 @llvm.is.fpclass.f32(float %x, i32 345)
br i1 %cond, label %if.then, label %if.else
if.then:
%ret1 = call i1 @llvm.is.fpclass.f32(float %x, i32 456)
ret i1 %ret1
if.else:
%ret2 = call i1 @llvm.is.fpclass.f32(float %x, i32 456)
ret i1 %ret2
}
; TODO: These two is.fpclass can be simplified.
define i1 @test8(float %x) {
; CHECK-LABEL: define i1 @test8(
; CHECK-SAME: float [[X:%.*]]) {
; CHECK-NEXT: [[ABS:%.*]] = call float @llvm.fabs.f32(float [[X]])
; CHECK-NEXT: [[COND:%.*]] = fcmp oeq float [[ABS]], 0x7FF0000000000000
; CHECK-NEXT: br i1 [[COND]], label [[IF_THEN:%.*]], label [[IF_ELSE:%.*]]
; CHECK: if.then:
; CHECK-NEXT: [[RET1:%.*]] = call i1 @llvm.is.fpclass.f32(float [[X]], i32 575)
; CHECK-NEXT: ret i1 [[RET1]]
; CHECK: if.else:
; CHECK-NEXT: [[RET2:%.*]] = call i1 @llvm.is.fpclass.f32(float [[X]], i32 575)
; CHECK-NEXT: ret i1 [[RET2]]
;
%abs = call float @llvm.fabs.f32(float %x)
%cond = fcmp oeq float %abs, 0x7FF0000000000000
br i1 %cond, label %if.then, label %if.else
if.then:
%ret1 = call i1 @llvm.is.fpclass.f32(float %x, i32 575)
ret i1 %ret1
if.else:
%ret2 = call i1 @llvm.is.fpclass.f32(float %x, i32 575)
ret i1 %ret2
}
define i1 @test9(float %x) {
; CHECK-LABEL: define i1 @test9(
; CHECK-SAME: float [[X:%.*]]) {
; CHECK-NEXT: [[COND:%.*]] = fcmp olt float [[X]], -1.000000e+00
; CHECK-NEXT: br i1 [[COND]], label [[IF_THEN:%.*]], label [[IF_ELSE:%.*]]
; CHECK: if.then:
; CHECK-NEXT: ret i1 false
; CHECK: if.else:
; CHECK-NEXT: ret i1 false
;
%cond = fcmp olt float %x, -1.0
br i1 %cond, label %if.then, label %if.else
if.then:
%ret1 = fcmp oeq float %x, 0x7FF0000000000000
ret i1 %ret1
if.else:
ret i1 false
}
define i1 @test10(float %x) {
; CHECK-LABEL: define i1 @test10(
; CHECK-SAME: float [[X:%.*]]) {
; CHECK-NEXT: [[COND:%.*]] = fcmp olt float [[X]], -1.000000e+00
; CHECK-NEXT: br i1 [[COND]], label [[IF_THEN:%.*]], label [[IF_ELSE:%.*]]
; CHECK: if.then:
; CHECK-NEXT: ret i1 false
; CHECK: if.else:
; CHECK-NEXT: ret i1 false
;
%cond = fcmp olt float %x, -1.0
%neg = fneg float %x
br i1 %cond, label %if.then, label %if.else
if.then:
%ret1 = fcmp oeq float %neg, 0xFFF0000000000000
ret i1 %ret1
if.else:
ret i1 false
}
; TODO: handle and/or conditions
define i1 @test11_and(float %x, i1 %cond2) {
; CHECK-LABEL: define i1 @test11_and(
; CHECK-SAME: float [[X:%.*]], i1 [[COND2:%.*]]) {
; CHECK-NEXT: [[COND:%.*]] = fcmp olt float [[X]], -1.000000e+00
; CHECK-NEXT: [[AND:%.*]] = and i1 [[COND]], [[COND2]]
; CHECK-NEXT: br i1 [[AND]], label [[IF_THEN:%.*]], label [[IF_ELSE:%.*]]
; CHECK: if.then:
; CHECK-NEXT: [[RET1:%.*]] = fcmp oeq float [[X]], 0x7FF0000000000000
; CHECK-NEXT: ret i1 [[RET1]]
; CHECK: if.else:
; CHECK-NEXT: ret i1 false
;
%cond = fcmp olt float %x, -1.0
%neg = fneg float %x
%and = and i1 %cond, %cond2
br i1 %and, label %if.then, label %if.else
if.then:
%ret1 = fcmp oeq float %neg, 0xFFF0000000000000
ret i1 %ret1
if.else:
ret i1 false
}
; TODO: handle and/or conditions
define i1 @test12_or(float %x, i1 %cond2) {
; CHECK-LABEL: define i1 @test12_or(
; CHECK-SAME: float [[X:%.*]], i1 [[COND2:%.*]]) {
; CHECK-NEXT: entry:
; CHECK-NEXT: [[COND:%.*]] = fcmp ueq float [[X]], 0.000000e+00
; CHECK-NEXT: [[OR:%.*]] = or i1 [[COND]], [[COND2]]
; CHECK-NEXT: br i1 [[OR]], label [[IF_THEN:%.*]], label [[IF_ELSE:%.*]]
; CHECK: if.then:
; CHECK-NEXT: ret i1 false
; CHECK: if.else:
; CHECK-NEXT: [[RET:%.*]] = call i1 @llvm.is.fpclass.f32(float [[X]], i32 783)
; CHECK-NEXT: ret i1 [[RET]]
;
entry:
%cond = fcmp ueq float %x, 0.000000e+00
%or = or i1 %cond, %cond2
br i1 %or, label %if.then, label %if.else
if.then:
ret i1 false
if.else:
%ret = call i1 @llvm.is.fpclass.f32(float %x, i32 783)
ret i1 %ret
}
define i1 @test1_no_dominating(float %x, i1 %c) {
; CHECK-LABEL: define i1 @test1_no_dominating(
; CHECK-SAME: float [[X:%.*]], i1 [[C:%.*]]) {
; CHECK-NEXT: entry0:
; CHECK-NEXT: br i1 [[C]], label [[ENTRY:%.*]], label [[IF_ELSE:%.*]]
; CHECK: entry:
; CHECK-NEXT: [[COND:%.*]] = fcmp ueq float [[X]], 0.000000e+00
; CHECK-NEXT: br i1 [[COND]], label [[IF_THEN:%.*]], label [[IF_ELSE]]
; CHECK: if.then:
; CHECK-NEXT: ret i1 false
; CHECK: if.else:
; CHECK-NEXT: [[RET:%.*]] = call i1 @llvm.is.fpclass.f32(float [[X]], i32 783)
; CHECK-NEXT: ret i1 [[RET]]
;
entry0:
br i1 %c, label %entry, label %if.else
entry:
%cond = fcmp ueq float %x, 0.000000e+00
br i1 %cond, label %if.then, label %if.else
if.then:
ret i1 false
if.else:
%ret = call i1 @llvm.is.fpclass.f32(float %x, i32 783)
ret i1 %ret
}
|
