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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 4
; RUN: opt < %s -passes=reassociate,instcombine -S | FileCheck %s
; Not marked as fast, so must not change.
define float @test1(float %a0, float %a1, float %a2, float %a3, float %a4) {
; CHECK-LABEL: define float @test1(
; CHECK-SAME: float [[A0:%.*]], float [[A1:%.*]], float [[A2:%.*]], float [[A3:%.*]], float [[A4:%.*]]) {
; CHECK-NEXT: [[TMP_2:%.*]] = fadd float [[A3]], [[A4]]
; CHECK-NEXT: [[TMP_4:%.*]] = fadd float [[TMP_2]], [[A2]]
; CHECK-NEXT: [[TMP_6:%.*]] = fadd float [[TMP_4]], [[A1]]
; CHECK-NEXT: [[TMP_8:%.*]] = fadd float [[TMP_6]], [[A0]]
; CHECK-NEXT: [[TMP_11:%.*]] = fadd float [[A2]], [[A3]]
; CHECK-NEXT: [[TMP_13:%.*]] = fadd float [[TMP_11]], [[A1]]
; CHECK-NEXT: [[TMP_15:%.*]] = fadd float [[TMP_13]], [[A0]]
; CHECK-NEXT: [[TMP_18:%.*]] = fadd float [[A1]], [[A2]]
; CHECK-NEXT: [[TMP_20:%.*]] = fadd float [[TMP_18]], [[A0]]
; CHECK-NEXT: [[TMP_23:%.*]] = fadd float [[A0]], [[A1]]
; CHECK-NEXT: [[TMP_26:%.*]] = fsub float [[TMP_8]], [[TMP_15]]
; CHECK-NEXT: [[TMP_28:%.*]] = fadd float [[TMP_20]], [[TMP_26]]
; CHECK-NEXT: [[TMP_30:%.*]] = fsub float [[TMP_28]], [[TMP_23]]
; CHECK-NEXT: [[TMP_32:%.*]] = fsub float [[TMP_30]], [[A4]]
; CHECK-NEXT: [[TMP_34:%.*]] = fsub float [[TMP_32]], [[A2]]
; CHECK-NEXT: [[T:%.*]] = fmul float [[TMP_34]], [[TMP_34]]
; CHECK-NEXT: ret float [[T]]
;
%tmp.2 = fadd float %a4, %a3
%tmp.4 = fadd float %tmp.2, %a2
%tmp.6 = fadd float %tmp.4, %a1
%tmp.8 = fadd float %tmp.6, %a0
%tmp.11 = fadd float %a3, %a2
%tmp.13 = fadd float %tmp.11, %a1
%tmp.15 = fadd float %tmp.13, %a0
%tmp.18 = fadd float %a2, %a1
%tmp.20 = fadd float %tmp.18, %a0
%tmp.23 = fadd float %a1, %a0
%tmp.26 = fsub float %tmp.8, %tmp.15
%tmp.28 = fadd float %tmp.26, %tmp.20
%tmp.30 = fsub float %tmp.28, %tmp.23
%tmp.32 = fsub float %tmp.30, %a4
%tmp.34 = fsub float %tmp.32, %a2
%T = fmul float %tmp.34, %tmp.34
ret float %T
}
; Should be able to eliminate everything.
define float @test2(float %a0, float %a1, float %a2, float %a3, float %a4) {
; CHECK-LABEL: define float @test2(
; CHECK-SAME: float [[A0:%.*]], float [[A1:%.*]], float [[A2:%.*]], float [[A3:%.*]], float [[A4:%.*]]) {
; CHECK-NEXT: ret float 0.000000e+00
;
%tmp.2 = fadd fast float %a4, %a3
%tmp.4 = fadd fast float %tmp.2, %a2
%tmp.6 = fadd fast float %tmp.4, %a1
%tmp.8 = fadd fast float %tmp.6, %a0
%tmp.11 = fadd fast float %a3, %a2
%tmp.13 = fadd fast float %tmp.11, %a1
%tmp.15 = fadd fast float %tmp.13, %a0
%tmp.18 = fadd fast float %a2, %a1
%tmp.20 = fadd fast float %tmp.18, %a0
%tmp.23 = fadd fast float %a1, %a0
%tmp.26 = fsub fast float %tmp.8, %tmp.15
%tmp.28 = fadd fast float %tmp.26, %tmp.20
%tmp.30 = fsub fast float %tmp.28, %tmp.23
%tmp.32 = fsub fast float %tmp.30, %a4
%tmp.34 = fsub fast float %tmp.32, %a2
%T = fmul fast float %tmp.34, %tmp.34
ret float %T
}
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