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Oct 4, 2025
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bless autodiff batching test #147315

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74 changes: 42 additions & 32 deletions tests/codegen-llvm/autodiff/batched.rs
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Original file line number Diff line number Diff line change
@@ -1,4 +1,4 @@
//@ compile-flags: -Zautodiff=Enable,NoTT -C opt-level=3 -Clto=fat
//@ compile-flags: -Zautodiff=Enable,NoTT,NoPostopt -C opt-level=3 -Clto=fat
//@ no-prefer-dynamic
//@ needs-enzyme
//
Expand All @@ -23,7 +23,7 @@ fn square(x: &f32) -> f32 {
}

// d_square2
// CHECK: define internal fastcc [4 x float] @fwddiffe4square(float %x.0.val, [4 x ptr] %"x'")
// CHECK: define internal [4 x float] @fwddiffe4square(ptr noalias noundef readonly align 4 captures(none) dereferenceable(4) %x, [4 x ptr] %"x'")
// CHECK-NEXT: start:
// CHECK-NEXT: %0 = extractvalue [4 x ptr] %"x'", 0
// CHECK-NEXT: %"_2'ipl" = load float, ptr %0, align 4
Expand All @@ -33,23 +33,28 @@ fn square(x: &f32) -> f32 {
// CHECK-NEXT: %"_2'ipl2" = load float, ptr %2, align 4
// CHECK-NEXT: %3 = extractvalue [4 x ptr] %"x'", 3
// CHECK-NEXT: %"_2'ipl3" = load float, ptr %3, align 4
// CHECK-NEXT: %4 = fmul float %"_2'ipl", 2.000000e+00
// CHECK-NEXT: %5 = fmul fast float %4, %x.0.val
// CHECK-NEXT: %6 = insertvalue [4 x float] undef, float %5, 0
// CHECK-NEXT: %7 = fmul float %"_2'ipl1", 2.000000e+00
// CHECK-NEXT: %8 = fmul fast float %7, %x.0.val
// CHECK-NEXT: %9 = insertvalue [4 x float] %6, float %8, 1
// CHECK-NEXT: %10 = fmul float %"_2'ipl2", 2.000000e+00
// CHECK-NEXT: %11 = fmul fast float %10, %x.0.val
// CHECK-NEXT: %12 = insertvalue [4 x float] %9, float %11, 2
// CHECK-NEXT: %13 = fmul float %"_2'ipl3", 2.000000e+00
// CHECK-NEXT: %14 = fmul fast float %13, %x.0.val
// CHECK-NEXT: %15 = insertvalue [4 x float] %12, float %14, 3
// CHECK-NEXT: ret [4 x float] %15
// CHECK-NEXT: %_2 = load float, ptr %x, align 4
// CHECK-NEXT: %4 = fmul fast float %"_2'ipl", %_2
// CHECK-NEXT: %5 = fmul fast float %"_2'ipl1", %_2
// CHECK-NEXT: %6 = fmul fast float %"_2'ipl2", %_2
// CHECK-NEXT: %7 = fmul fast float %"_2'ipl3", %_2
// CHECK-NEXT: %8 = fmul fast float %"_2'ipl", %_2
// CHECK-NEXT: %9 = fmul fast float %"_2'ipl1", %_2
// CHECK-NEXT: %10 = fmul fast float %"_2'ipl2", %_2
// CHECK-NEXT: %11 = fmul fast float %"_2'ipl3", %_2
// CHECK-NEXT: %12 = fadd fast float %4, %8
// CHECK-NEXT: %13 = insertvalue [4 x float] undef, float %12, 0
// CHECK-NEXT: %14 = fadd fast float %5, %9
// CHECK-NEXT: %15 = insertvalue [4 x float] %13, float %14, 1
// CHECK-NEXT: %16 = fadd fast float %6, %10
// CHECK-NEXT: %17 = insertvalue [4 x float] %15, float %16, 2
// CHECK-NEXT: %18 = fadd fast float %7, %11
// CHECK-NEXT: %19 = insertvalue [4 x float] %17, float %18, 3
// CHECK-NEXT: ret [4 x float] %19
// CHECK-NEXT: }

// d_square3, the extra float is the original return value (x * x)
// CHECK: define internal fastcc { float, [4 x float] } @fwddiffe4square.1(float %x.0.val, [4 x ptr] %"x'")
// CHECK: define internal { float, [4 x float] } @fwddiffe4square.1(ptr noalias noundef readonly align 4 captures(none) dereferenceable(4) %x, [4 x ptr] %"x'")
// CHECK-NEXT: start:
// CHECK-NEXT: %0 = extractvalue [4 x ptr] %"x'", 0
// CHECK-NEXT: %"_2'ipl" = load float, ptr %0, align 4
Expand All @@ -59,22 +64,27 @@ fn square(x: &f32) -> f32 {
// CHECK-NEXT: %"_2'ipl2" = load float, ptr %2, align 4
// CHECK-NEXT: %3 = extractvalue [4 x ptr] %"x'", 3
// CHECK-NEXT: %"_2'ipl3" = load float, ptr %3, align 4
// CHECK-NEXT: %_0 = fmul float %x.0.val, %x.0.val
// CHECK-NEXT: %4 = fmul float %"_2'ipl", 2.000000e+00
// CHECK-NEXT: %5 = fmul fast float %4, %x.0.val
// CHECK-NEXT: %6 = insertvalue [4 x float] undef, float %5, 0
// CHECK-NEXT: %7 = fmul float %"_2'ipl1", 2.000000e+00
// CHECK-NEXT: %8 = fmul fast float %7, %x.0.val
// CHECK-NEXT: %9 = insertvalue [4 x float] %6, float %8, 1
// CHECK-NEXT: %10 = fmul float %"_2'ipl2", 2.000000e+00
// CHECK-NEXT: %11 = fmul fast float %10, %x.0.val
// CHECK-NEXT: %12 = insertvalue [4 x float] %9, float %11, 2
// CHECK-NEXT: %13 = fmul float %"_2'ipl3", 2.000000e+00
// CHECK-NEXT: %14 = fmul fast float %13, %x.0.val
// CHECK-NEXT: %15 = insertvalue [4 x float] %12, float %14, 3
// CHECK-NEXT: %16 = insertvalue { float, [4 x float] } undef, float %_0, 0
// CHECK-NEXT: %17 = insertvalue { float, [4 x float] } %16, [4 x float] %15, 1
// CHECK-NEXT: ret { float, [4 x float] } %17
// CHECK-NEXT: %_2 = load float, ptr %x, align 4
// CHECK-NEXT: %_0 = fmul float %_2, %_2
// CHECK-NEXT: %4 = fmul fast float %"_2'ipl", %_2
// CHECK-NEXT: %5 = fmul fast float %"_2'ipl1", %_2
// CHECK-NEXT: %6 = fmul fast float %"_2'ipl2", %_2
// CHECK-NEXT: %7 = fmul fast float %"_2'ipl3", %_2
// CHECK-NEXT: %8 = fmul fast float %"_2'ipl", %_2
// CHECK-NEXT: %9 = fmul fast float %"_2'ipl1", %_2
// CHECK-NEXT: %10 = fmul fast float %"_2'ipl2", %_2
// CHECK-NEXT: %11 = fmul fast float %"_2'ipl3", %_2
// CHECK-NEXT: %12 = fadd fast float %4, %8
// CHECK-NEXT: %13 = insertvalue [4 x float] undef, float %12, 0
// CHECK-NEXT: %14 = fadd fast float %5, %9
// CHECK-NEXT: %15 = insertvalue [4 x float] %13, float %14, 1
// CHECK-NEXT: %16 = fadd fast float %6, %10
// CHECK-NEXT: %17 = insertvalue [4 x float] %15, float %16, 2
// CHECK-NEXT: %18 = fadd fast float %7, %11
// CHECK-NEXT: %19 = insertvalue [4 x float] %17, float %18, 3
// CHECK-NEXT: %20 = insertvalue { float, [4 x float] } undef, float %_0, 0
// CHECK-NEXT: %21 = insertvalue { float, [4 x float] } %20, [4 x float] %19, 1
// CHECK-NEXT: ret { float, [4 x float] } %21
// CHECK-NEXT: }

fn main() {
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